Time for a top end or jetting?

The bike doesnt start after its warm unless the choke is on. It doesnt idle very well at all. Air mixture screw is 1 and a half out. Idle is about the same 1 and a half out but doesnt seem to make a difference witht the idle screw. When riding if your ******* it on a straight away and then let off to set up for a turn the motor seems to surge (rev up and down a little). Im thinking top end needs replaced which im going to do anyway. What should a compression checker read if the top end is fresh? I live in ohio if that makes a difference with the jetting.

I tried that before the last race. I alway clean the air filter and tear off the subframe and take the air box out and blow it out. Maybe I missed some thing with the jets. Any Idea what a compression reading should be? I tried that before the last race. I alway clean the air filter and tear off the subframe and take the air box out and blow it out. Maybe I missed some thing with the jets. Any Idea what a compression reading should be?

just saying that the choke bypases the idle circut in the carb (pilot jet) and u say it wont idle well at all, the idle screw isnt changing anything and when u let off after acel it leans way out it all screams fror the pilot jet and pasages to be cleaned, take it out and run a wire like from a wire wheel or brush through it everything u mensioned has the idle circut in comonjust saying that the choke bypases the idle circut in the carb (pilot jet) and u say it wont idle well at all, the idle screw isnt changing anything and when u let off after acel it leans way out it all screams fror the pilot jet and pasages to be cleaned, take it out and run a wire like from a wire wheel or brush through it everything u mensioned has the idle circut in comon

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Related Questions:

My Harley is very slow to warm up, it also does not like to idle without choke unless it is good and warm. It could be the clogged filter was acting like a choke, but ruining your gas mileage. Now with air flowing smoothly the engine needs a bit of choke to idle. It should not need choke once it is fully warmed up unless your idle speed is set too low. With the engine hot, check RPM if you have a tach. If too low, adjust the idle speed at the carburetor. I suggest you find the adjustment while the engine is cold.